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Henry Jack Grainger, DO

NPI 1306892005ActiveIndividual· Internal Medicine· Houston, TX

Internal Medicine (DO) with 1960 Physician Associates, practicing in Houston, Texas. Their prescriptions cost Medicare Part D more than their services did: $729,355 for 9,073 claims, against $164,092 paid for services in 2024. Novo Nordisk Inc was the largest of 2 companies reporting payments in 2025, $60.74 in all, mostly food and beverage.

Overview

NPI1306892005
StatusActive
Entity typeIndividual
CredentialDO
Sole proprietorYes
NPI issuedMay 25, 2006
Last updated in NPPESApr 12, 2021
Certified by providerApr 12, 2021

Specialties and licenses

About license numbers in NPPES

Exclusion screening

ListResultDetails
HHS-OIG LEIE · Nov 10, 2026No matchChecked by NPI and by name + state
North Carolina Medicaid · Nov 11, 2026No match—
New York OMIG · Nov 11, 2026No match—
Ohio Medicaid · Nov 11, 2026No match—
Pennsylvania Medicheck · Nov 11, 2026No match—
Washington HCA · Nov 11, 2026No match—

Official OIG search · How matching works ·Bulk check a roster

Medicare

Enrollment (PECOS)Enrolled Practitioner - Internal Medicine (TX)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients116
Services billed1,653 across 31 procedure codes
Paid by Medicare$164,092

Part D prescriptions in 2024

Prescriptions (claims)9,073 · 14,355 30-day fills
Patients463
Total drug cost$729,355
Generic share87% of claims

Medicare sources and data years

Education and affiliations

Graduation year1973
Medicare specialtyInternal Medicine
Secondary specialtiesCardiovascular Disease (Cardiology), Geriatric Medicine

Medical group

Other facilities

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$60.74 · 3 payments from 2 companies
  • 2024$88.57 · 5 payments from 3 companies

Top paying companies in 2025

CompanyAmountPayments
Novo Nordisk Inc$37.812
Exact Sciences Corporation$22.931

What the 2025 payments were for

  • Food and Beverage$60.74 · 3 payments

Receiving payments does not imply wrongdoing. What Open Payments covers ·original records

Other Internal Medicine providers in Houston

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